Lucent Technologies 585-210-940 Create an alternate boot device, Installing Mirrored Systems

Installing Mirrored Systems	CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems
How to upgrade an Enterprise platform to disk mirroring		26

# metastat
. . .
d21: Mirror
Submirror 0: d19
State: Okay
Submirror 1: d20
State: Okay
. . .
d19: Submirror of d21
State: Okay
Size: 14398560 blocks
Stripe 0:
Device	Start Block	Dbase	State	Hot Spare
c0t0d0s3	0	No	Okay
Stripe 1:
Device	Start Block	Dbase State		Hot Spare
c0t2d0s1	0	No	Okay
d20: Submirror of d21
State: Okay
Size: 14398560 blocks
Stripe 0:
Device	Start Block	Dbase State		Hot Spare
c0t1d0s3		0	No	Okay
Stripe 1:
Device	Start Block	Dbase State		Hot Spare
c0t3d0s1		0	No	Okay

Step 11: Create an alternate boot device

If the stripes of d19 and d20 do not account for all the disk drives on your system, check your disk drive connections. If discrepancies persist, telephone the Lucent National Customer Care Center at 1.800.242.2121, or contact your Lucent representative or distributor.

Set up an alternate boot device by doing the following procedure:

1.Enter the following command:

# ls -l /dev/rdsk/<newbootdev>

where newbootdev is the device name of the disk chosen as boot disk 2 (recorded as the d12 metadevice on page 13).

If your boot disk 2 were c0t2d0s0, for example, the system would respond with something like this:

lrwxrwxrwx 1 root root 83 Jun 18 15:23 /dev/rdsk/c0t2d0s0 ->

../../devices/sbus@3,0/SUNW,fas@3,8800000 /sd@2,0:a,raw

2.Record the part of the line immediately following /devices and preceding :a. For the example above, you would record the part of the line beginning /sbus@3,0 and ending sd@2,0.